TA DHR Series Getting Started Manual
Discovery hybrid rheometer
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Summary of Contents for TA DHR Series
- Page 1 Discovery Hybrid Rheometer (DHR Series) Getting Started Guide Revision E Issued May 2014...
- Page 2 TA Instruments may have patents, patent applications, trademarks, copyrights, or other intellectual prop- erty covering subject matter in this document. Except as expressly provided in written license agreement from TA Instruments, the furnishing of this document does not give you any license to these patents, trade- marks, copyrights, or other intellectual property.
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Page 3: Introduction
Getting Started Guide: • TA Instruments Trademarks • TA Instruments Patents • Other Trademarks • TA Instruments End-User License Agreement • TA Instruments Offices DHR Series Getting Started Guide Page 3... -
Page 4: Notes, Cautions, And Warnings
EN 61010-2-010:2003 Particular requirements for laboratory equipment for the heating of materials + Amendments. For United States UL61010-1:2004 Electrical Equipment for Laboratory Use; Part 1: General Requirements. UL61010A-2-010:2002 Particular requirements for laboratory equipment for the heating of materials + Amendments. Page 4 DHR Series Getting Started Guide... -
Page 5: Electromagnetic Compatibility Standards
Part 1: General Requirements. Emissions: Meets Class A requirements per CISPR 11. Immunity: Per Table 1 - Basic immunity test requirements. For the United States CFR Title 47 Telecommunication Chapter I Federal Communications Commission, Part 15 Radio frequency devices (FCC regulation pertaining to radio frequency emissions). DHR Series Getting Started Guide Page 5... -
Page 6: Safety
Please heed the warning labels and take the necessary precautions when dealing with these areas. This Getting Started Guide contains cautions and warnings that must be followed for your own safety. DHR Series Getting Started Guide Page 6... -
Page 7: Warnings
TA Instruments personnel at least once a year. AVERTISSEMENT: Il est recommandé que l'entretien de cet instrument soit assuré par le personnel formé et qualifié de TA Instruments au moins une fois par an. WARNING: The material used on the top surface of the Peltier Plate is hard, chrome-plated copper and the material used for the 'skirt' of the Peltier is stain- less steel. - Page 8 AVERTISSEMENT: Débranchez toujours l'instrument avant de procéder à la maintenance. WARNING: No user serviceable parts are contained in the rheometer. Mainte- nance and repair must be performed by TA Instruments or other qualified ser- vice personnel only. AVERTISSEMENT: Le rhéomètre ne contient aucune pièce réparable par l'utilisa- teur.
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Page 9: Electrical Safety
Power: 1.4 kW DANGER: Because of the high voltages in this instrument, maintenance and repair of internal parts must be performed by TA Instruments or other qualified service personnel only. DANGER: À cause de la présence de tensions élevées dans cet instrument, la maintenance et la réparation des pièces internes doivent être effectuées... -
Page 10: Liquid Nitrogen Safety
The oven inner doors have a trough around the bottom of the element assembly for collection of excess liquid nitrogen. Any excess fluid collected will drain out from the oven at the lower outer edge. DHR Series Getting Started Guide Page 10... -
Page 11: Chemical Safety
Do not use hydrogen or any other explosive gas with the ETC. • Use of chlorine gas will damage the instrument. • If you are using samples that may emit harmful gases, vent the gasses by placing the instrument near an exhaust. DHR Series Getting Started Guide Page 11... -
Page 12: Usage Instructions
Maintenance and Repair CAUTION: Adjustment, replacement of parts, maintenance and repair should be carried out by trained and skilled TA personnel only. The instrument should be disconnected from the mains before removal of the cover. MISE EN GARDE: Le réglage, le remplacement des pièces, la maintenance et la réparation doivent être effectués par uniquement par le personnel formé... -
Page 13: Table Of Contents
Important: TA Instruments Manual Supplement ........ - Page 14 Connecting the TA Air-Cooled Peltier Circulator ....... . . 45...
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Page 15: Chapter 1: About The Discovery Series Rheometers
“controlled stress”. They might alterna- tively have been described by the second as “combined motor and transducer” (CMT). This term is now preferred, since modern rheometers can operate in both controlled stress and controlled rate modes. DHR Series Getting Started Guide Page 15... - Page 16 SMT rheometers that led eventually to the modern ARES. Rheometric Scientific was acquired by TA Instruments in January 2003, and its products continue to be manufactured and developed. In the meantime, interest revived in CMT instruments, partly because of a desire to perform creep tests, and partly because of the need to investigate the phenomenon of the yield stress in more detail, for which the available SMT rheometers lacked the sensitivity.
- Page 17 Figure 1 Jack Deer’s Air Turbine Rheometer (left); Deer Rheometer (right). Figure 2 CSR. DHR Series Getting Started Guide Page 17...
- Page 18 TA Instruments in 1993. From that time on, progress in CMT technology has been remarkable, with the AR 1000 launched in 1996 and the AR 2000 in the year 2000 by TA Instru- ments. Both these instruments used air bearings, but the limits of that technology appear to have been...
- Page 19 The Discovery Hybrid Rheometer Series (DHR-3, DHR-2, and DHR-1) builds on the AR-G2 technology, with the DHR-3 setting the new standard for CMT rheometers. Figure 5 DHR and electronics box. DHR Series Getting Started Guide Page 19...
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Page 20: The Discovery Hybrid Rheometer (Dhr)
A magnetic thrust bearing that supports the drive shaft and two radial air bearings that align it. • An optical encoder that determines its angular position. Each of these components is described in more detail in “Key Rheometer Components” on page DHR Series Getting Started Guide Page 20... -
Page 21: Key Rheometer Components
The ball slide is mounted within the instrument column. A motor located in the base of the casting drives the ball slide screw, moving the instrument head vertically. Its posi- tion is measured by a linear encoder mounted on the ball slide. DHR Series Getting Started Guide Page 21... -
Page 22: Magnetically-Levitated Bearing
The air consumption is reduced, and the wider gap and more durable materials used make the bearing more robust and less susceptible to contamination. Encoder Thrust bearing Radial bearings Drag cup True position sensor Figure 7 DHR motor bearing. DHR Series Getting Started Guide Page 22... -
Page 23: Radial Air Bearings
In the DHR-3, the performance of the encoder is enhanced by using a dual reader configuration. This pat- ent pending design improves the basic resolution and noise level of the displacement signal as well as removing drift and improving phase resolution. DHR Series Getting Started Guide Page 23... -
Page 24: Axial Force Transducer
During the closure, the light is a continuous red, changing to a continuous green when the geometry gap has been reached. The start button also illuminates green. DHR Series Getting Started Guide Page 24... -
Page 25: Smart Swap
This provides a thermal break and is particularly effective when using environmental systems such as EHP and ETC. NOTE: The water cooling is optional, but recommended during high-torque, long-lasting test procedures. DHR Series Getting Started Guide Page 25... -
Page 26: Environmental Control Units
Refer to the Peltier Plate Getting Started Guide for additional information. Figure 9 Discovery Series Peltier Plate. DHR Series Getting Started Guide Page 26... -
Page 27: Peltier Concentric Cylinders
Refer to the Peltier Concentric Cylinder Getting Started Guide for additional information. Figure 10 Discovery Series Peltier Concentric Cylinder. DHR Series Getting Started Guide Page 27... -
Page 28: Upper Heated Plate
NOTE: To extend the upper heater temperature range to 150°C or above, use the Electrically Heated Plates option). Refer to the Upper Heated Plate Getting Started Guide for additional information. Figure 11 Discovery Series Upper Heated Plate. DHR Series Getting Started Guide Page 28... -
Page 29: The Electrically Heated Plate (Ehp)
Plates for temperature control to 200°C and as temperature control to 150°C for UV curing options. Refer to the Electrically Heated Plate Getting Started Guide for additional information. Figure 12 Discovery Series EHP. DHR Series Getting Started Guide Page 29... -
Page 30: The Starch Pasting Cell
This temperature control system is specifically for the measurement of asphalt binders immersed in a water bath. Its operation is covered by the Asphalt Submersion Cell manual. Refer to the Asphalt Submersion Cell Getting Started Guide for additional information. Figure 13 Discovery Series Asphalt Submersion Cell. DHR Series Getting Started Guide Page 30... -
Page 31: The Environmental Test Chamber (Etc)
Refer to the ETC Getting Started Guide ACS-3 Getting Started Guide for additional information. Figure 14 Discovery Series ETC and ETC viewer. DHR Series Getting Started Guide Page 31... -
Page 32: Accessories
The stator is a circular cup with removable lid, the geometry is a thin, biconical disc. For chemical inertness, and to reduce the meniscus effect, the cup and lid are constructed from polytetraflouro- ethylene, PTFE, and the geometry from stainless steel. DHR Series Getting Started Guide Page 32... -
Page 33: The Interfacial Double Wall Ring (Dwr)
50 mm. R1: Ring radius R2: Dish inner radius Du Noüy Ring ü y Ring Interface Dish Fluid Figure 16 Du Noüy Ring measuring system schematic. DHR Series Getting Started Guide Page 33... -
Page 34: The Pressure Cell
AVERTISSEMENT: La cellule à pression de TA Instruments a été conçue pour être utilisée à des températures allant jusqu'à 150°C maximum et des pressions de 138 bar (2000 psi) maximum. -
Page 35: The Etc Viewer
A blue light with a wavelength around 450 nm is also available. The blue light is most frequently used for curing highly-filled dental restoratives. Refer to the UV Curing Accessories Getting Started Guide for additional information. DHR Series Getting Started Guide Page 35... -
Page 36: Small Angle Light-Scattering (Sals) Accessory
The SALS is available for the DHR-2 and DHR-3 rheometers. This option incorporates TA Instruments’ Smart Swap™ technology bringing a new level of speed and simplicity for making simultaneous rheology and SALS measurements. -
Page 37: Discovery Series Rheometer Geometries
The geometry file associated with this serial number is then loaded by the software. Sleeve with magnetic strip Geometry base Figure 17 Smart Swap geometry. DHR Series Getting Started Guide Page 37... -
Page 38: Instrument Specifications
Normal force sensitivity 0.005 N Normal force resolution (mN) 0.5 mN 1.Zero in controlled stress mode. Controlled rate mode depends on duration of point being measured and sampling time. 2.Results at 99% of commanded value. DHR Series Getting Started Guide Page 38... - Page 39 Normal force sensitivity 0.005 N Normal force resolution (mN) 0.5 mN 1.Zero in controlled stress mode. Controlled rate mode depends on duration of point being measured and sampling time. 2.Results at 99% of commanded value. DHR Series Getting Started Guide Page 39...
- Page 40 Normal force sensitivity 0.01 N Normal force resolution (mN) 1 mN 1.Zero in controlled stress mode. Controlled rate mode depends on duration of point being measured and sampling time. 2.Results at 99% of commanded value. DHR Series Getting Started Guide Page 40...
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Page 41: Chapter 2: Installing The Instrument
Overview Normally the installation of your new system will be carried out by a member of the TA Instruments sales or service staff, or their appointed agents, and it will be ready for you to use. However, should you need to install or relocate the instrument, this chapter provides the necessary instructions. -
Page 42: Installation Requirements
Dusty environment (pollution degree 2). • Exposure to direct sunlight. • Poorly ventilated areas. After you have decided on the location for your instrument, refer to the following sections to unpack and install your Discovery Series rheometer. DHR Series Getting Started Guide Page 42... -
Page 43: Connecting The System
NOTE: Discovery rheometers communicate with the control computer via an Ethernet link, as described in the next section. Signal port Power port AIR IN connection Supply/Return connections for Peltier Supply/Return connections for motor cooling Figure 18 Cable connections to make on rheometer back panel. DHR Series Getting Started Guide Page 43... -
Page 44: Connecting The Computer To The Electronics Box Using Ethernet
For Peltier-based temperature control options, connect a supply of water to the supply and return connections at the rear of the rheometer. Connect the air supply (from the air regulator assembly) to the AIR IN connection. Set the regulator to 2 bar (30 psi). DHR Series Getting Started Guide Page 44... -
Page 45: Connecting The Ta Air-Cooled Peltier Circulator
NOTE: After the system has been started, recheck the level of water in the reservoir and refill to the inner rim, if necessary. CAUTION: Do not put any liquid other than distilled water and TA Instruments’ Conditioner in the circulator reservoir. -
Page 46: Leveling The Rheometer
Any movement caused by pressing should be rectified by adjusting the feet, and then rechecking the level. An 'L'- shaped level with a bubble in each arm is the most convenient type to use for this process. DHR Series Getting Started Guide Page 46... -
Page 47: Installing A Geometry
It should be screwed finger tight, but not forced. NOTE: If Smart Swap is turned on, the geometry rotates a few seconds after it is fitted to enable identification. NOTE: To remove the geometry, perform this operation in reverse. DHR Series Getting Started Guide Page 47... - Page 48 NOTE: If Smart Swap is turned on, the geometry rotates a few seconds after it is fitted to enable identification. Smart Swap cover notch Smart Swap geometry notch Figure 22 Aligning the Smart Swap geometry notch and Smart Swap cover notch. DHR Series Getting Started Guide Page 48...
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Page 49: Chapter 3: Use, Maintenance, And Diagnostics
EHP, UHP, and ETC (doors closed), simply removing the draw rod should be sufficient to protect the bearing unless the instrument is going to be moved. NOTE: It is recommended that the air be left on and that the bearing remain unclamped. Turn off the air supply. DHR Series Getting Started Guide Page 49... -
Page 50: Adjusting Brightness Of The Lcd Display
Press and hold down the cycle display button (do not lift your finger off the button). The display will cycle to the TA Logo view, and gradually the display will brighten. Release the button when the display brightness is sufficient. -
Page 51: Maintenance And Repair
Maintenance and Repair CAUTION: Adjustment, replacement of parts, maintenance and repair should be carried out by trained and skilled TA personnel only. The instrument should be disconnected from the mains before removal of the cover. WARNING: The cover should only be removed by authorized personnel. Once the cover has been removed, live parts are accessible. - Page 52 Each person grasps the DHR rear cover with one hand in the locations shown above. Figure 26 DHR lift handle locations. Treat the rheometer with the same degree of care you would take with any scientific laboratory instrument. DHR Series Getting Started Guide Page 52...
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Page 53: Startup Errors
The instrument has some power on self test (POST) routines. If the electronics box issues groups of beep codes while flashing the TA logo in time with the sounder, then there is either a serious error which prevents the system from proceeding further, or there is a less serious error but no display is available to notify the user. -
Page 54: System Post Error Codes
System POST Error Codes Table 4: DHR Series POST Error Codes Number of Beeps Code (hex) Description Signal cable not fitted Power cable not fitted Instrument ±48V supply not activated System controller communications failure Heater drive communications failure Display not present... -
Page 55: Module Status Codes
Module Status Codes Table 5: DHR Series Module Status Codes Code (hex) Description Unexpected processor reset Supply rail out of range Temperature out of range Sensor fault Output fault Power fail indicated System heartbeat timeout CAN rx overflow CAN tx timeout... -
Page 56: Index
21 casting 21 electrical safety 9 Electrically Heated Plate description 29 description 31 ETC Viewer 35 front panel 24 geometry 47 installation 41 connecting the system 43 geometry 47 location requirements 42 DHR Series Getting Started Guide Page 56... - Page 57 Du Noüy Ring 33 DWR 33 LCD display adjusting brightness 50 location of instrument 42 magnetically-levitated bearing 22 motor 23 optical encoder 23 Peltier Concentric Cylinder description 27 Peltier Plate description 26 Pressure Cell description 34 DHR Series Getting Started Guide Page 57...
- Page 58 6 liquid nitrogen 10 Safety Standards 4 SALS Accessory description 35, 36 Smart Swap 25 True Position Sensor 25 unpacking 41 Upper Heated Plate description 28 UV Curing Accessory description 35 Warnings 7 DHR Series Getting Started Guide Page 58...
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